| Type: | Bishop |
| Honorific-Prefix: | Most Reverend |
| Carlo Diotallevi | |
| Bishop of Strongoli | |
| Church: | Catholic Church |
| Term: | 1639–1652 |
| Predecessor: | Giulio Diotallevi |
| Successor: | Martino Denti de' Cipriani |
| Consecration: | 22 May 1639 |
| Consecrated By: | Alessandro Cesarini (iuniore) |
| Birth Date: | 1607 |
| Birth Place: | Rimini, Italy |
| Death Date: | March 1652 |
| Death Place: | Strongoli, Italy |
| Nationality: | Italian |
Carlo Diotallevi (1607 – March 1652) was a Roman Catholic prelate who served as Bishop of Strongoli (1639–1652).[1]
Carlo Diotallevi was born in Rimini, Italy.[2] On 2 May 1639, he was appointed during the papacy of Pope Urban VIII as Bishop of Strongoli.On 22 May 1639, he was consecrated bishop by Alessandro Cesarini (iuniore), Cardinal-Deacon of Sant'Eustachio, with Lelio Falconieri, Titular Archbishop of Thebae, and Giovanni Battista Altieri, Bishop Emeritus of Camerino, serving as co-consecrators. He served as Bishop of Strongoli until his death in March 1652.